Well if you look on this link you will see someone thinks mine is between a Mk 1 & a Mk 2, which it ain't! Many errors throughout the whole page eg used by RUC in "late 1960s" is 1958 late 1960s?
http://en.wikipedia.org/wiki/Humber_Pig
I followed the link on the Shorland & surprise, surprise my Shorland is there! At least it is captioned correctly, but there are a number of myths perpetuated in the text.
BTW I never did manage to get a picture of your Pig, nice to see a sensible Pig. That must me worth a cold one if you call on me at either show!
PS On the Pig page I followed the link to the Humber Hornet, again full of drivel. It makes me sceptical of believing anything I read on these sort of web sites, pathetic. I must go off line & calm down!