Sad discovery this morning

I checked my two 1981 3.5 claw 20 cent pieces.
I had previously classified these in the evening, by strong lamplight.
One of the pieces was my "pride and joy", because it was in quite good conditions.
But unfortunately, the bright and shiny little "advertiser" was an impostor.

When I looked at the coin again in daylight, and rotating it against the light, I noticed that it was in fact a 4 claw.
I have "shown all" below.
The "shiny impostor" is on the left-hand side, the "true" / weather-beaten 3.5 claw on the right-hand side.
I have also shown the evening photo of the claws from the impostor in A - looks a lot like 3.5 claws, right ?.
B shows what the same area of the coin looked like "in the light of day" - first claw faintly extends the full length.
C shows "true blue" in the light of day. Clearly a "3.5 claw".



A bit grumpy

, but wiser nonetheless .
Squire