Well, we don't call these Talbots, but this is a pretty common aftermarket design in the UK; you get them cheap at shows:
http://www.geocities.jp/motorcity3349/acc/mirror/rs_ltd.html
These are referenced as "Mini" mirrors, and are possibly a variant on this mirror (basically the same head, with minor differences, with a special base to fit a Mini door)
https://secure.visav.co.uk/avshop/products.asp?sword=mirror&page=3&showitem=1169
$50 each. These Mirrors are as likely to come from the UK as anything else. Minis are pretty popular in Japan, and there is a healthy aftermarket industry selling parts familar to any Briton.
I think these pictures say it all:
ie. they have the look, but not too practical in a Roadster, judging by all the extra mirrors this guy needs to see around, and cover the blind spots.