A B5 saddle-stitched booklet, 6 pages - not an equipment catalog but the entry sheet (応募台紙) for the DENON Sound Life Present loyalty program by Nihon Columbia, issue No. 9, running 1 April through 30 September 1982. The mechanic is simple: you buy DENON cassettes, each j-card has a points coupon printed in its corner, you cut it out, paste it onto the ruled sheet inside the booklet and save up to the amount you need.
Points were awarded by a table, and the higher the series and the longer the tape, the more a coupon was worth: the cheap DX1 gave 1-3 points (C50-C120), DX3 gave 2-3, the music-grade DX4·5·7 from 2 to 6 points for the C120, the metal DXM 4-6, while microcassettes were 4 points for a C46 and a full 8 for a three-pack.
There are 25 prizes, ranging from 15 to 1000 points. On the bottom shelf, small stuff for the cassette collector: index cards with photographs (丹地保典, 前田真三) and illustrations (青木清, 久里洋二) at 15 points each, title stickers for 20, a cleaning kit and an AIR CHECK notebook for 25, DENON-branded odds and ends - a belt pouch, a cloisonné tie pin, a cassette library notebook for 30. Then it climbs: a head-demagnetizing eraser for 80, cases and cabinets storing 45, 75, 144, 212, 276 and 390 cassettes (from 120 to 750 points), the DENON Pocket AH-P5 headphones for 240. At the very top, for 1000 points - a Latin-script typewriter.
The AH-P5 could also be had another way: cut out just 5 coupons, paste them onto a separate slip and enter a lottery for 1000 prizes (until 20 June 1982).

