Rear shocks on a 1969

[kp]

Here's what you need Make him an offer of $200 and he may take $250. These look to be correct and condition seems to be OK Working condition is another question but they are correct
https://www.ebay.com/itm/363157610272?ul_noapp=true

[Sgt.Pinback]

I´  d say those on ebay are K1.
5 times around

https://www.ebay.com/itm/Honda-NOS-CB750-Set-Rear-Shocks-CB-750-CB750K0-K1-52400-300-020XW/223547203809?epid=1811838705&hash=item340c73a0e1:g:JYUAAOSwVL1WAyPu


Here are mine and I´m pretty sure those are the original ones my sandcast came with.
7 times around

[kp]

Correct Uli, those new shocks being sold by Joe Marks are K1's but a lot of restorers have bought these over the years and replaced the spring with the correct K0 one. The correct springs can be purchased from Yamiya and are easy enough to install or re-chrome a used one. I actually haven't seen a K0 shock for sale in at least 10 years or more
The pair being sold by macivmotors are correct K0s even though I can't cop the seller. 

[jaka]

Hi!
So these are correct?
https://www.ebay.com/itm/363157610272?ul_noapp=true&autorefresh=true

[Sam]

Yes, though they are almost certainly not going to perform well. 51 year old shocks will likely have failed seals and no oil left in them. Fine for display, but they won’t ride as well has a fresh set of shocks.

[Sgt.Pinback]

Still good enough for a short evening run (here on my diecast)

[kp]

Hi!
So these are correct?
https://www.ebay.com/itm/363157610272?ul_noapp=true&autorefresh=true

Yes They are correct and not so common in that condition. They may still be OK as they don't look to be wet around the bottom mount area but as Sam said, could be empty of oil. Seller could have cleaned them of oil but still look to be dusty. These can be rebuilt if the seals are gone