Custom/Low Serial Number: Choose this option to jump ahead in line by up to several hundred spots! Also a great way to support the project a little more and request your own serial number and/or production date. Serials can be up to 7 numerical digits only – no letters or other special characters. Important note: click this link to see details on available serials, especially for single digit serials.
Likewise, you can choose to support the project through the other options in this section. Feel free to add this on to a previous order to upgrade it (you can choose free shipping on this order if it’s just for this upgrade).
Thank you for supporting the project a little extra – it is much appreciated to help cover the tens of thousands of dollars of project cost overruns and get your keyboard far faster.
Which serials are available? See below for which serials you can pick with each level of support. With all levels of support, you can also pick higher numbers and/or custom production dates, subject to availability.
I usually ship in sequence of order date (generally first come first served) unless you order a single digit serial or low serial number. Single significant digit serials (less than 0000010) will be one of the very first to ship, and low serial numbers will be among the earliest to ship.
What are the different upgrade levels? There are different levels of low serial, ranging from single digit serials, to double digit range of serials, to other low serials 100 and higher. The standard $29 option allows for some requests. Other options can be selected by picking the single, double, or triple digit serial options. It is ok to upgrade from the $29 option you may have ordered already to the $99 option using the store item $1 increments to make up the difference.
Custom dates: All low/custom serial options allow the option to request a custom date / year that will go on the product label. A birthday, birthdate (with birth year!), or anniversary are all possibilities to consider. You can send a list of preferred serials in priority order, up to 7 digits (numbers only and they must be non-negative). Many other serials (3 to 7 significant digits) are also available but not listed below. The list is not updated constantly and if you order any low serial option I cannot guarantee you will receive your requested serial; you may be assigned an available serial.
Important terms: this store item does not guarantee a requested serial number. If your requested serials are not available, another serial will be assigned to you; it may be a “lower tier” serial and you agree not to receive a refund for the cost difference as the primary purpose of this item is to expedite shipping by skipping the line as well as getting something that can match a particular date. Ordering a low serial does not guarantee shipment within a certain amount of time. It only guarantees that when each shipment arrives, your order will be one of the first to ship if it is all in stock. I personally inspect and ship each keyboard. Under no circumstances can you add conditions of purchase such as requiring a refund if a certain serial or date is unavailable. Many serial numbers have already been reserved, especially for the F62 and F77; the main benefit of this product add-on is to support the project a little more in exchange for skipping the line, not to have a serial close to number 1. The low serial upgrade does not make your keyboard arrive any faster from the factory, but it allows you to skip the backlog as soon as the keyboard arrives and is in stock. You are not purchasing an exclusive license for one serial or production date; others may have the same serial or date as you (for example, someone with a Model M style F104 and an Ultra Compact F104, or two of the same model if I mistakenly duplicate serials). For example, outside of the premium low serial options, the standard low serial for the F77 is now in the low thousands. Please feel free to check with me before purchase if you need a certain number or date. A reminder that while the skip the line option lets you move ahead in the backlog by dozens and dozens of spots, there is still a quality control and order preparation process that needs to happen, so it will still take time for your order to ship, but you may get your order a month (or more) earlier. As I note on the update blog posts: “In terms of the timeline from here, I cannot estimate the timeline for any specific order, so please do not email me asking for a personalized update on when your order will ship. You will receive an email with a tracking number once your order is all done.”
Serial Levels:
The Model M case style Model F keyboards (Classic F104/FSSK/F122) and classic Beam Spring Keyboards:
Single Digit Serials: 0-9
Premium Serials: 10 through 99
Regular Low Serials: 100 and up
Beam Spring Round 1 and the newly announced anodized case Model F keyboards (Compact F104/FSSK/F50/F15 Split/Split Ortho):
Single Digit Serials: 0-9 (only a few remaining!)
Premium Serials: 10 through 50
Regular Low Serials: 51 through 99
With other models out for years that have most of their small numbers already taken (F62, F77, etc.), the next lowest serials will be offered.
Click to view available serials (Check with me – this page is not updated often and these serials may be gone by now – last updated 8/4/26):
CLASSIC B104
Single Digit Serials: 1, 5, 7-9
Premium Serials: 11, 12, 14-49, 59-99
Regular Low Serials: 107-299
CLASSIC B122
Single Digit Serials: Sold Out
Premium Serials: 11, 12, 14-49, 55-86, 88-99
Regular Low Serials: 100-400
CLASSIC B62
Single Digit Serials: 0-9
Premium Serials: 12-54, 56-99
Regular Low Serials: 100-400
CLASSIC BSSK
Single Digit Serials: 0-9
Premium Serials: 10-49, 52-64, 66-99
Regular Low Serials: 100-400
CLASSIC F104
Single Digit Serials: 7
Premium Serials: 28-99
Regular Low Serials: 145-299
CLASSIC F122
Single Digit Serials: Sold Out
Premium Serials: 25, 27-41, 43-68, 70-99
Regular Low Serials: 135-299
CLASSIC F62
Single Digit Serials: 7
Supreme Serial Level: 150, 151, 153-167, 169-179, 181-195
Premium Serial Level: Available, no pre-set range
Regular Low Serials (1101-1200): 1116-1200
CLASSIC F77
Single Digit Serials: Sold Out
Supreme Serial Level: Available, no pre-set range
Premium Serial Level: Available, no pre-set range
Regular Low Serials (2701-2800): 2701-2800
CLASSIC FSSK
Single Digit Serials: 1, 3-7, 9
Premium Serials: 12-17, 19-68, 70-99
Regular Low Serials: 128-212, 214-299
COMPACT B104
Single Digit Serials: 1, 4-9
Premium Serials: 10-20, 22-49
Regular Low Serials: 58-83, 85-99, 237-400
COMPACT BSSK
Single Digit Serials: 1, 6, 7, 9
Premium Serials: 10-50
Regular Low Serials: 51, 52, 54-99, 210-400
COMPACT F62
Single Digit Serials: 1
Premium Serials: 13, 14, 18-20, 27, 43-48, 50
Regular Low Serials: 70-85, 87-99, 102-200, 203, 385-394, 398, 399
COMPACT F77
Single Digit Serials: 1, 8
Premium Serials: 15, 17, 18, 20
Regular Low Serials: 75-85, 87-98, 100, 108-131, 133-165, 167-169, 172-189
COMPACT FSSK
Single Digit Serials: 0-9
Premium Serials: 10-17, 20-50
Regular Low Serials: 65-100, 291-400
