Texas Instruments 1978 Vintage Little Professor Calculator Working

Texas Instruments "flash card" calculator Vintage TI- 1978 Little Professor Tested & works (see video) Bright display. Made in USA Requires one 9 volt battery (not included) Very good vintage condition. Back has some normal wear and scratches. Smoke Free Home Has been stored in a/c conditions without a battery installed. Will be packed and shipped with Care! Feel free to ask questions if there is something I haven't covered :-)