B d 
TaN ARCHEOLOGY IN BRITISH GUIANA 117 
Koriabo Phase pottery type: Site 
Barima Plain(?7)22s_.=_=2 N-1, N-4, N-12, N-13, N-14, N-16, N-20, N-21 
Koriabo Incised__--—-______. N-12, N-13, N—16, N-20 
PotTTeRY ARTIFACTS 
Two classes of pottery artifacts are found infrequently in the 
Mabaruma Phase: objects of primary manufacture and worked 
potsherds. 
Pot rests.—Thirty-five fragments of fired clay, with a very sandy, 
friable paste, appear to belong to pot rests. No fragment is large 
enough to show the original form, but a combination of features sug- 
gests a generally flat to slightly convex base, measuring 8-10 cm. in 
diameter, with the sides sloping inward to form a truncated cone 
10-15 cm. high, with a diameter of 6-8 cm. at the upper end. The 
surfaces are all very irregular. The fragments were distributed as 
follows: 7 from N-4, level 0-8 cm.; 19 from N-13, level 45-60 cm., 8 
from N-15, surface, and 1 from N-20, level 0-8 cm. 
“Spoon” (fig. 47, 6)—A small spoonlike object with a protruding 
stem in which a hole is drilled part of the way through came from the 
surface of N-16. The overall exterior measurements are: length 4.5 
em.; width 3.0 cm.; overall depth 1.8 cm.; bowl wall thickness 5-6 
mm. The bowl is concave and ranges from 1.3-1.5 cm. at the deepest 
point. The stem tapers from the bowl and extends 1 cm. outward, 
tilting upward slightly. Itis8mm.indiameter. The hole in the end 
is 3 mm. deep and 4 mm. in diameter. The surfaces are dark brown 
with a small black fire cloud on the bottom of the exterior; smoothed 
but not even, with a gritty feel due to the protrusion of coarse sand 
temper particles. No other complete or fragmentary examples were 
found. Probably it was nothing more than an experimental model- 
ing of some potter’s clay. 
Stamp (fig. 47, a) —A fragment of a cylindrical stamp came from 
N-12, cut 1, level 24-32 cm. The paste is tempered with coarse sand, 
some of the granules up to 2 mm. in length. Fired light tan on the 
surface and irregularly inward up to 2 mm., leaving a medium-gray 
core. The surfaces are not well smoothed, and erosion causes temper 
grains to protrude. The fragment represents half of one end of the 
stamp, which was originally cylindrical, 4 cm. in exterior diameter. A 
hole 1.5 cm. in diameter runs through the center. The end is finished 
by reducing the diameter 5 mm. forming a smooth-surfaced “collar” 
7-9 mm. long. Original length cannot be reconstructed. The surface 
of the cylinder is ornamented by broad (4-5 mm.), deep (4 mm.) 
grooves. The bottoms of the grooves are U-shaped or V-shaped and 
smooth, even and uneroded. The design area is divided into panels 
by straight lines running lengthwise, and these are filled with curved 
