Wales 2 1/2p, 3p, 5p, 7 1/2p Stamps

These Post Office stamps were affixed to specially designed envelopes and postmarked on the first day that the stamps were issued.

07.07.1971 | Caerphilly Castle, Postmarked at Caerphilly

sold out View FDCs for this issue Wales 2 1/2p, 3p, 5p, 7 1/2p, Caerphilly Castle Wales 2 1/2p, 3p, 5p, 7 1/2p, Caerphilly Castle
Click on image for larger view
26999
Producer/Series:
Postmark:
Caerphilly, First Day of Issue - Welsh Dragon, Special Handstamp
Notes: I have never seen this cover before, nor have I seen the postmark - Caerphilly. The stamps on the cover are a little overlapping and creased - but this is a very scarce cover.
Reference Images:
Regional Stamp
Presentation Pack (D28)
Why not take a look at other items on a similar theme?
Castles & Palaces
Heraldry
Wales