What does the company do?
How much do they make (gross)?
Is it a large entity or a small shop?
Whats it worth to you?
What is the minimum you would feel comfortable selling them for ( without sellers remorse ) ?
Do they generate any income for you now?
If you could grand (1K) for the 2 would you be satisfied? ( Just a number...can't tell price with out other info ) They are very specific in there meaning and therefore have a very narrow market to be used in.
Remember to start high...you could aways go down....you can never ( very rarely ) go up.
Good Luck!