"Sony Product Bookmarks" is a catalog booklet printed in 1960 (Showa 36). Promotional pamphlets and catalogs seem to have been distributed separately to retailers, but this booklet appears to have been initially attached to the products. With the starting salary for a university graduate in 1960 being 13,000 yen and in 2025 being 240,000 yen, the portable black and white television on page 5 of the attached photo would have cost 5 months' worth of salary. Shipping: Will be sent via Yu-Packet Post Mini of Yu-Yu Mercari.