Pneumatic self timer Techpribor USSR with case working

Description

Text given below is written by me, Mee7R4, for eBay, copyrighted and cannot be copied partly or entirely.
Pneumatic self-timer
Techpribor, Leningrad, USSR
with bakelite case
Partly working. Self-timer fires in appr. 3 seconds (instead of 10-15), most likely the spring is weak. Case is original and has signs of age and use.
Camera "FED-2" is not included and shown as an example of mount.
This is an external pneumatic self-timer which is used for the cameras which are not equipped with built-in self-timer. For your comfort, I took a picture with this self-timer mounted on "FED-2" (which is not included).
It is screwed in a release button (if it has a carving - for example, early "FED" cameras had a solid release button) or into a special hole. There is a L-cut at the side. Push the switch to the long part and it will fire in approx. 10-15 sec (3 at the self-timer offered) with a pin activating the shutter of the camera.
Inside the self-timer there is a valve. When released this valve takes air via 4 small holes and thus slows the spring. If all the holes are closed the offered self-timer will fire in 5-7 seconds.
Rotating the knob at the top you can increase or decrease the activating time. At the knob there is an inscription "15 seconds" and arrows with + and -.
Note: pin is pushed from the self-timer very fast!
Size: 67*18*19 mm
Weight: 27 g (56 g with case)
Conditions:
Economy shipping to the address stated at eBay with tracking number, sent within 3 business days after payment.
See the photos for details. Photos are actual - that is exactly the rangefinder you will receive.
Please, do not hesitate to contact me for any information required.
Please, watch my other items.
I combine shipping - write to me what items do you want to buy, and I will calculate the discount for combined shipping.
Package is packed thoroughly and carefully and marked as a “gift”. If you need to add invoice in the envelope or not to mark as a “gift”, write to me.
If you are interested in terms of shipment - write to me, and I will tell the minimum, maximum and average time of shipment to your country (I accumulated vast statistics).
Return shipping (if the item is as described in the ad) is paid by the buyer.
My price include the item and shipping cost and does not include Duties, Value Added Taxes, Customs Clearance Fees and other charges. These charges are the buyer's full responsibility. Please check with your country's customs office to determine what these additional costs will be before bidding/buying.
Buyer needs to pay for the above fees in case that occurred for certain goods. If the package returns back to me due to the buyer refuse to pay those fees, I would not send the package again unless the buyer completes those fees and pay all the return and resend cost. Buyer can not cancel the order or request refund due to this reason.
All the customs clearance and other affairs that can be necessary to get the package in the buyer’s country is buyer’s full responsibility.
Please, be sure that you are aware of your post office working time, order and rules of package delivery and be ready to accept the package. If the package returns to me as “unclaimed” or the tracking system shows “unsuccessful delivery attempts”, refund to the buyer will be paid deducting the shipping and return costs. Resending must be paid extra.
Important information for buyers from Australia and Canada: post of these countries does not update tracking information, so package is tracked only till Russian border or trans-shipment point. Average time for the package to reach a buyer according to my statistics is: Canada - 23.57 days (min.11 days, max.63 days), Australia - 23.53 days (min.7 days, max.49 days). When buying please have in view maximum terms to avoid disappointment.