Ancient coin with owl counterstamp [solved]

Another ancient (Greek?) coin without attribution needs help.

D.- 22mm
W.- 5.80 grams
Metal- Copper of bronze

Bust right with owl counterstamp
No discernible inscription

Lyre?- λA__ at right
 ?? at left

This is a coin of Lampsacus (Lampsakos), Mysia.

See BMC p87 #75 and plate XX #11 below:
http://forumancientcoins.com/numiswiki/BMC/BMC_Mysia.pdf

The coin below has a grape counterstamp.
https://www.asiaminorcoins.com/gallery/displayimage.php?album=104&pid=9156#top_display_media

Thanks numisquare. Right on the money. In your experience, Is the owl counterstamp more of less desirable than the bunch of grapes counterstamp? Or are they about equal?

Here are three counterstamps with owl:
https://www.asiaminorcoins.com/gallery/displayimage.php?album=428&pid=1401#top_display_media
https://www.asiaminorcoins.com/gallery/displayimage.php?album=428&pid=9202#top_display_media
https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=111037

If you have access to The Numismatist, there are some articles on The Ancient Countermarks by Gregory G. Brunk. I do not know who struck the countermarks nor of their desirability.

Thanks numisquare. From some discussion in the 3rd link...it appears that little is known about the counterstamps on ancient Greek coins and one respondent indicated that a comprehensive study would take a student a lifetime to complete with the resulting book being immensely thick.