Merchants Trading Stamps

The first thing to do is to confirm this is Birmingham UK, and not Birmingham Alabama. (Something Birmingham (UK) Council couldn't manage last year when they used a picture of the American city of some official pamphlets).

The style certainly looks quite old. I would hazard a guess that they were locally produced for a group of local shops somewhwere in the city. Shame my grandparents are not around as they were Brummies and could have possibly recognised them.

Did the people's Trading Company only have a store in Birmingham or were they national? 

A thought came to me today.
I remember that when colecting trading stamps (Co-op or Green Shield) were the norm in the UK they always had a redemption value of 0.0001d printed on them. Some cigarettes also had points vouchers that good be redeemed for goods, and these also had that or similar printed on them.
Was there some sort of legal or tax reason for this?
Did this occur on other country's trading stamps?

I cannot see that on the example above.

Edit: Just looked and see that redemption value was 0.075d or 0.03p after 1971 decimalisation

Without professing any real knowledge of trading stamps I would say they are British from the cash redemption value. The ABE 190 is probably just the serial number of the book they are from.

I have a few items, all British. The Green Shield, Co-op and Pink stamps all had that same 0.035p redemption value. Its the 'p' though that is the biggest pointer to UK origin.