Armored Cruiser Dryad

Dryad was an armored cruiser built for the Elipian Royal Navy in 1905 and was the last armored cruiser built for the Royal Navy. Despite being described as one of the best armored cruisers built, she was delivered far behind schedule and she was obsolete by the time the navy received her and ultimately had an uneventful service life. The Dryad was eventually sold for scrap in 1919. 

Displacement: 15,800 t

Length:
Waterline: 128.4m
Overall: 129.9m

Beam: 20.8m

Draft: 6.8m

Installed Power:
20,600 shp (15,400 kW)
28 coal-fired boilers

Propulsion:
2 screws; 2 steam turbine

Speed:
20 knots

Range:
2,270 nmi (4,200 km) at 15 knots (28km/h)

Compliment:
~900 officers and men

Armaments:
4 × 10.4” (265mm)/25 cal. guns in two two-gun turrets
8 × 8” (200mm)/14 cal. guns in four two-gun turrets
16 × 5” (125mm)/40 cal. guns in 16 single-gun casemate turrets
4 × 1.9” (47mm)/40 cal. guns  in 4 single mounts

Armor:
Belt: 152mm
Barbettes: 150mm to 200mm 
Deck: 50mm
Turrets: 180mm to 200mm

I don't actually know what the flags mean. Also that tent at the back, I've seen it on a few ships like the Mikasa but I don't know it's purpose or if it's just a museum thing.