I always seem to be asking for help rather than helping!!
Two items I was looking at today. The first is a block of, I think, the 1928 Coats of Arms series unmounted with full gum, Michel 426/427. I have had a look in the catalogue and I think they are the K11 and K 12 blocks - if they are they appear to be rather valuable - does that look right? Either way its a lovely looking block
The second is a sheet of the 1936 Olympics stamps, I've got a few of these sheets for various issues - are they First Day Covers?