I can recommend the landser's site: http://www.lanser.dk/ section "Pictures" and then "effigies".
What construction is used depends in my opinion largely on the region and exact period.Ich made mine basing on 1340-60 french and english effigies: http://www.diu-minnezit.de/realie_details.php?sid=0&lid=0&rid=6&tid=3
[ 05-05-2006: Message edited by: jboerner ]
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Diu Minnezīt
Reconstruction of textiles, armour and daily life
1250,1350,1475
Nuremberg and Paris
http://www.diu-minnezit.de
IG Meisterhauw
Reconstruction of late medieval and early renaissance fencing techniques
http://www.meisterhauw.de
Nuremberg in the middle ages
http://www.nuernberg-im-mittelalter.de