ČKD logo - 2 parts

Final version of former ČKD locomotive factory keychain, made of 2 parts. First is one-coloured base, second optionaly consists of 2 colours. If you want to use on-line colour change generator, add value of 2.9 as a divider:
https://blog.prusaprinters.org/color-print/#_ga=2.242771714.1863037818.1562747094-2062300502.1562747094

I've used DIN 963 A M2.5x4 screws for more realistic effect.