Knobs, the stock is absolutely beautiful, please expound on the materials and methods used a bit?
You have described a very typical post-war, German production model 27, maybe around 1960 to 62-vintage. These guns used a lot of leftover pre-war parts, including the complete receiver tube, breech latch, and many screws and such, though the ball-sear trigger was totally new. The sights were initially very similar to pre-war guns as well (although the hood you mention is a bit unusual, I'd like to see that!).
The unfailing key to distinguishing pre- from post-war 27's, is the rear receiver cap. On pre-war guns its aft face is flat. On post-war guns it is bulged, a result of fitting the new "ball-sear" trigger design into the old receiver tube.
The alloy trigger, and various subtle variations of the finger-groove stock, (I have had 6 post-war 27 stocks at various times, and NO TWO are exactly alike) lasted until the early 60's. Lack of date stamps and serial numbers are also common (unfortunately!). The more familiar newer 27's with simplified stock, stamped trigger blade, scope dovetail, ball-bearing breech latch, click-adjusting sights, etc., came with a rationalization of the whole Diana sporter line, that seems to have occured around 1964 or 65.
The Milbro model 27 actions were exact copies of the pre-war German ones, of course, with a much different trigger design. Again, some of the small parts probably are old German ones IMHO. Their stocks have a distinctly "English" flavor though.
You may find other info relevant to dating the little guy here:
http://www.network54.com/Forum/405945/message/1174790135/A+bunch+of+27%27s>
http://www.network54.com/Forum/405945/message/1174871812/More+27+details>
http://www.network54.com/Forum/405945/message/1202686357/Cute+little+air+rifle+swims+English+Channel%21>