Found this old photo of up to date Modern Test equipment

Mid twenties sumpthinorother, mid to high grade car, Stewert vaccuum tank 6 cyl, may even be early twenties by the looks of the grab handle, looks like brass. Cant quite make out the dust cover cloisonne, I would guess 22 or 23, nope I could be wrong, it has vacuum wiper motor so it may be 25 26 or so.

Almost looks like a B, maybe Buick ? I am not familiar with much other than Dodge

Ah!  A somethinometer!

L-head six cylinder, not a Buick they used overhead valve engines.  Might ID it by the radiator ornament.   I was often told by the old mechanics the fancy test equipment was there to impress the customer.   It was handy but had more bells and whistles than one really needed.

Got front wheel brakes mid 20's+, hub cap could be E for Erskine?

The radiator ornament ...  Wish I could see more detail on that -- makes me think of the old Mac dog ornament.

>hub cap could be E for Erskine?

I think it is, late 20's Erskine has the funky turn and lift hood handle, most cars in wood spoke era had straps and lift handles, or folded catches., front beakes look similar, springs, would need to see runningboards to be more certain. (Is it me or are there no headlights on that car?)

If so it a car that is quite rare today...

http://en.wikipedia.org/wiki/Erskine_(automobile)

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Might be 27/28 Peerless, tough to find a Peerless owner that can identify

most likely a Essex, they were selling allot of cars before the Great Depression.