This is the originalcirca 1970's pignose 7-100 guitar amplifier serial number # 5749 "VERY VERY LOW SERIAL NUMBER" Pignose Industries, Inc Los Angeles California.Great for recording! Eric Clapton used this same model during the Layla sessions. The Pignose Original Portable Amp is a legendary portable practice amp, complete with pig-snout on/off switch and volume control. Case opens up for easy access to speaker and insides. You can even have a friend fan the case open and closed for a wah-wah effect! Also features preamp out jack for plugging those classic distortion sounds into external power amps, PA, or recording console. Quality-built with metal corner protectors, tough covering, and a rugged 6" speaker. Runs on batteries or optional power supply. The Pignose Original Portable Amp weighs 5 lbs. NEAR MINT CONDITION !!! for an amp of this age. 100 % FUNCTIONAL !!!