090G, 1002080 - fichtenmoped1106, sadly Stihl doesn't have a production date for this number.
090, 1149896 - Beau 
[url=http://chainsawcollectors.se/phpbb3/viewtopic.php?p=228865#p228865]090AV, 1181460  -  FrankZ [/url]
[url=https://m.facebook.com/groups/555947141452381/permalink/1583642482016170/]090, 1191934 - Daniel J Sheets (fb) (marked EE)[/url]
090, 1258488, Mike Wilson (fb)
090G, 1302357 - Beau
090G, 1302374 - Beau
[url=http://www.chainsawcollectors.se/phpbb3/viewtopic.php?p=153145#p153145]090G, 1302672 - BillG (chaindrive)[/url]
090G, 1305468 - Darren
090, 4231143 - Beau 
090, 4469274 - bulletpruf
090G, 4938330S - Beau
090AV, 6629829 - Beau  (early style)
090GS, 6722918S - Steffen
[url=http://www.chainsawcollectors.se/phpbb3/viewtopic.php?p=288696#p288696]S090AV  7772964 - teachwood[/url]
090AV, 8592872 - pleasant
090G, 8882811 - Beau 
090G, 8883307 - bulletpruf
090G, 8883377 - Beau.
090G, 8883405 - fichtenmoped1106, Saw is from 16th serial 090 G was produced, 5/1975.
090G, 8883865 - Beau
[url=http://www.chainsawcollectors.se/phpbb3/search.php?keywords=Chain+drive+contra+G]090G, 902775 - bulletpruf (Chain gear)[/url]
090, 9279315 - fwgsaw
090AV, 9831768 - PIONEER SAWS
090AV, 9832044 - Beau (early style)
090G, 18883807 - FARAGSALINA
[url=http://www.chainsawcollectors.se/phpbb3/viewtopic.php?p=278852#p278852]090AV, 110167411 - Falco17 [/url]
090, 110327214 - Internet 
090AV, 110512311 - Beau (early style)
090G, 110551060 - Beau
090, 110755156 - Beau
090, 112543185 - Beau
090AV, 113281303 - Beau (late style)
090AV, 114316386
090AV, 114316424 - Beau (late style)
090AV, 116167411 - Supermax (late style)
090AV, 120207885 - jack-rijn
090AV, 129951784 - Dave1
090AV, 137173527 - Beau (late style)
090AV, 144689343 - bulletpruf
090AV, 147259070 - fwgsaw23


[b][u]S1 Stone saw[/u][/b]
[url=http://www.chainsawcollectors.se/phpbb3/viewtopic.php?p=266805#p266805]090G S1 stone saw 10002030 FARAGSALINA[/url]
[url=http://www.chainsawcollectors.se/phpbb3/viewtopic.php?p=266805#p266805]090G S1 stone saw 10001999 FARAGSALINA[/url]
10002120. S1 stone saw Internet

[url=http://www.chainsawcollectors.se/phpbb3/viewtopic.php?p=259422#p259422]090G S2 003434 Guy[/url]

[quote=fichtenmoped1106 post_id=285430 time=1716144424 user_id=7]
I found out more about production time of STIHL 090 G, 090 S1/S2 and Contra g - in an internal Stihl model list writen in 2000.

Model number 1109 - Contra G - 00.1964 - 00.1968
Model number 1109 - 090 G - 04.1969 - 09.1985
Model number 1601 - 090 S1 and S2 - 00.1967 - 00.1971
[/quote]