Hi - have just read your query and responses re R.A.F. Shropshire, in researching an item which has recently come into my possession! A small silver plated trophy (a cup, but with no stand) of 12.5cms height 6cms max. diameter, engraved to the front as follows: R.A.F. SEALAND V SHREWSBURY 1925. I wonder if this information may be of interest to you, in reference to the location of the latter base, it's date of closing, and the subsequent date of your family photo?