I recently bought a collection from Guernsey and in amongst were some shoulder boards. Last night whilst going through some photos I suddenly realised that the shoulder boards with the slip on F 152 were similar to the ones in the photo. I have no idea what the correct terminology for these slip on thing’s is, but what I would like to know is what the F 152 actually stands for. If anyone could let me know it would be much appreciated.
All the best from Jersey,
D

Click to enlarge the picture