Sorry no picture at moment but theyre cheap and plasticy feeling, fit under the bars, 7spd indexed.
Got a set of more conventional 7spd suntour thumbies Dave gave me, high end racer spec, milled brass looking barrel adjusters, black painted metal fiittings, I think there Suntour XC-E.
Also got several friction type 1980's all metal thumbies and a 7 speed Suntour 'rapid fire' sort of shifter.
I collect thumb shifters it seems as I have several more sets and the sickening thing is I never pay more than £1-2 per set.
Two good bike recycling charities are local to me.
In fact I seen a 90's full chromo rigid mtb by focus on sale in one charity. I had not heard of focus until Wiggle started selling them on the web recently but they seem to have been around a lot longer than I thought.
Igor is pronounced eegor, lots of Igors in Terry Pratchet novels.......yesh mathster