Posted by Ian S C on 30/01/2016 11:34:33:
No David, coins are no good, this is an international site, I use either a 6" steel rule, or a 0-1" micrometer in most of my photos. Although in this one I used a match box. Ian S C
Edited By Ian S C on 30/01/2016 11:35:38
Matchboxes not to useful either!
Here in the UK match boxes vary from about 1 1/4" long to over 4"… (we do like setting fire to things).
Neil