Formlabs Form 3+ 3D printer
CA$1,850
Used
1 / 4
US Stamps - Progress in Electronics - full sheets
CA$30
Description
In 1973, the US Postal Service issued these four stamps to commemorate Progress in Electronics: Full sheets of 50 stamps. - 6 cents - Marconi spark coil (Scott # 1500) - 8 cents - Transistors (Scott # 1501) - 11 cents - DeForest Audions (Scott # C86) - 15 cents - Microphone, Speaker, Radio tube (Scott # 1502) Selling the four sheets as a lot.
Source: kijiji
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