I have some 3626bpx120 heads with pattern variations (thin moustache and beard,
moustache touching mouth, different moustache shapes). The difference is very
visible.
Is it known if some belong to a specific set/time period or are they just random
variations?
[...] I wonder if before the digital age each printer had to be manually set somehow. That's a wide variation. (8 months ago, Oct 10, 2023, to Inventories)