File:Vintage National Panasonic Transistor Radio, Model RF-820H, AM-FM-SW Bands, 8 Transistors, Made In Japan, Circa Mid-1960s (49456004731).jpg - Wikimedia Commons
松下電器産業・National Panasonic Model No.R-137 7石トランジスタラジオ受信機 1967年製・専用革製ケース付き - ぱれっとストア ◎ Palette Store
1001 Hi-Fi Info: National Panasonic SG-6070 (1978) - It Does Sound Rather Expensive
National Panasonic 【RF-860】FM76~93MHz可能 - メルカリ
PK' poster: All that you need to know about the National Panasonic two-in-one covering Aamir Khan's privates
Vintage National Panasonic R3000 6 Band 12 Transistor Radio | eBay
National Panasonic【RF-848】FM 76~94 MHz受信 - メルカリ
Amazon.co.jp: National Panasonic Panasonic Matsushita Electric Industrial RF-800U USB Radio, 4 Band (FM/MW/SW1/SW2) + USB International Specifications : Electronics