OFFERED TODAY IS A NICE ORIGINAL "YELLO-BOLE" AIROGRATE PIPE WITH SNAP ON FILTER. THE PATENT DATE STAMPED ON IT DATES IT TO 1948, THE STEM IS ALUMINUM.

THE PIPE COMES WITH THE ORIGINAL NICKLE PLATED REEMER MARKED "YELLO-BOLE" PAT'D PENDING, JAPAN. AN UNUSABLE PIPE IN NICE CONDITION TO ADD TO A COLLECTION. HAPPY TO ANSWER QUESTIONS. GOOD LUCK BIDDING.