SONY Open Reel Deck [TC-R6] 4-track/2-channel, Working Condition

I have kept this item carefully indoors, but I am selling it due to decluttering and organizing.

4Tr 2Ch operation has been confirmed.
Recording, playback, fast forward, and fast rewind on 10-inch reels are all working fine.
MIC/LINE input, LINE output, and HEADPHONE output are all working fine.
VU meter operation and lamps are working fine.
Counter operation is working fine.
Playback of music tapes is successful without any issues.
In my personal opinion, considering its age, there are relatively few scratches, and it is in relatively good condition.
There is a chip on the upper left corner of the back panel (plywood?) of the rear cover (please refer to the photo).
There is no guarantee of factory specifications for mechanical operation, input/output levels, speed, etc.
Due to simple maintenance, there is no guarantee of specifications for mechanical operation, levels, etc., and detailed operation has not been checked.

Accessories include 2 genuine clamps and 2 sheets for adjusting reel thickness.
The tape and reels shown in the photos are not included.

As this is an old and heavy item, please accept it as no-claims, no-returns.
*Regarding sound quality, accurate measurements with measuring instruments have not been performed. Please understand that this is a used item, and those who are sensitive should refrain from purchasing. Please understand that price reductions are not possible.