Schneider-Kreuznach G-Claron 270mm f9 brand_Ilford with minor pencil and pen

with minor pencil and pen notations in the "Notes" section at the rear

meant to hold a flash or similar small accessory with compatible mount

It's not Aerochrome

Please note that this is not a rangefinder camera

You'll be able to figure them out

Schneider-Kreuznach G-Claron 270mm f9 brand_Ilford with minor pencil and penNot the fastest lens in the world, but this Schneider Kreuznach G Claron 270mm f9 is very compact and covers up to 8x10, which is pretty impressive. It's great for field cameras, although I suppose if you're already hauling around an 8x10 field camera, the appeal to compactness may have limited value to you. Nevertheless, this is an uncommon lens in excellent condition, with minor internal dust, no haze or fungus, a touch of the old Schneideritis