This mayo is line number 169R when found without the optic.
Measurements for the liner are 8-3/16" wide with a 4" wide foot that is 1/4 inch high. The bowl is 3-1/8" tall to the edge of the rim. The rim of the bowl is 7" wide and the foot is 3-3/16" wide.
Several different companies made mayos that looked exactly like this one. See Central's line 2000 for a look alike.
