ed
here is a couple of photos for you
1) early minispares crank
note, no angled back drilling on big ends and shape of smaller webs. stamped onto the larger web is size (84mm in this case) and then engraved on same web is minispares part number. this crank was produced 2003, so its fair to assume all cranks of this age will be the same
2) newer minispares crank
note, angled back drilling (done to avoid having to drill through and plug smaller webs), acid etched (or done with a james bond lazer?) in the face of the web nearest the pulley end is the part number, stroke, job number etc in a neat font
these are farndon cranks. these where produced 2010
ive never seen an ms crank with the plugs done like this
please note, these are my own, individual sales, nothing whatsoever to do with my employer, minispares