Yes Diana RWS rifles are still made. See the link below.
What condition is it in. That determines the value.
I would contact Diana directly at the link below and see if they will send you a diagram.
What condition is it in. That determines the value.
The condition determines the value. Please state the condition of the Diana, as Poor, Fair, Good, Very Good or Excellent. Then I can give an estimate of value.
Are you looking for a gun or rifle? ( You said airgun not rifle.) The Diana model 34 has be produced three different times over the years. Here are the years, 1928 -1940, again in 1984 and started production again in 2014. You can also find Diana marketed under the RWS brand. (Diana has a very complicated history). Unmarex air guns imports Diana models currently. I suggest you google Umarex-USA and contact them.
They are still in production today. There are several models available.
Some air rifles were available in .22 caliber.
It would help tremendously if you told me who made the rifle. There are over 1000 different models of air rifles. Was it made by Gamo, Crosman, Daisy, Beeman, Diana, Airforce or another brand? Just the model number alone does not give me enough information to answer you.
I would look to the Internet and do a search for 'Airgun repair." there are several people who repair airguns of all types. (see the link below.)
An Air Rifle is either a BB rifle or a pellet rifle. It uses air or gas to propel the projectile.
Diana made over a dozen different "Air Rifles."
check the link below and contact customer service. Crosman list that some parts are still available for this rifle.