In good working condition Tektronix  DPO TDS754D 500MHz 2Gs/s oscilloscope. 

The scope passes signal path compensation (SPC) as can be seen from the pictures. 

Options:

13 - RS-232/Centronics interface 

1F  - Floppy drive

1M - Extended acquisition length

2F -  Advanced DSP math, FFT

2C - Communication Signal Analyzer

Contact me if you have any questions.