In doing a bit of reorganizing I located a box with American Flyer Rubber Roadbed including (American Flyer 727 Curved Roadbed) and, curved and straight track with steel pins that are sharp as nails. [These track don't seem terribly safe for children.] There is also the straight AF Rubber roadbed, although I didn't copy the product number.
The roadbed is marked "THE A. C. GILBERT CO. NEW HAVEN. CONN. U. S. A." There also appears to be the designation, "PA - 1138[?] PAT PEND". I recall obtaining this track and roadbed with some Super "0" track from a local hobby store that was closing about 25 years ago.
Can anyone identify this track and roadbed?