Classical: 4-circuit

1.4 (1i.4) 1.4.3.0 SATBsd [4] 

OM 4.1

Level sequence: 0|1234|5

Component sequence: 4-circuit serpentine

Segment sequence: [1]-[1]-[1]-[1]

Turn sequence: iIIIi

Level changes: +1+1+1+1+1

Group: 1.4 SAT Group 1

Series: Serpentines (Epsilon)

1.4 (1i.4/●) 2.4.3.1 SAPUn [1] 

Hx: Nazca Plain, Peru

Level sequence: 0|1234|5|0

Component sequence: 4-circuit serpentine + exit from center

Segment sequence: [1]-[1]-[1]-[1]

Turn sequence: iIIIio

Level changes: +1+1+1+1+1−5

Group: 1.4 SAP Group 1

Series: Processional Serpentines

1.4 (1i.2) 1.4.2.2 SATBn [2] 

OM 4.2

Level sequence: 0|1432|5

Component sequence: C + M (single circuit + single meander)

Segment sequence: [1]-[111]

Turn sequence: ii-iOOi

Level changes: +1+3−1−1+3

Group: 1.4 SAT Group 2

Series: Ascending Transit Baltics (Delta dual), Ascending Nested Serpentines "Snakes" (Eta dual)

1.4 (3o.4) 1.4.2.2 SATBn [2]

OM 4.3

Hx: Temple Cowley

Level sequence: 0|3214|5

Component sequence: M + C (single meander + single circuit)

Segment sequence: [111]-[1]

Turn sequence: iOOi-ii

Level changes: +3−1−1+3+1

Group: 1.4 SAT Group 2

Series: Descending Transit Baltics (Delta), Descending Nested Serpentines "Snakes" (Eta)

1.4 (3o.4/●) 2.4.2.3 SAPUn [1]

Level sequence: 0|3214|5|0

Component sequence: M + C − AB (single meander + single circuit - axial bracket)

Segment sequence: [111]-[1]

Turn sequence: iOOi-ii-o

Level changes: +3−1−1+3+1−5

Group: 1.4 SAP

Series: Descending Processional Baltics, Descending Processional Nested Serpentines

1.4 (3o.4) 1.4.2.2 SXTBn [2]

Level sequence: 0|3214|5

Component sequence: M + Sp (single meander + 1-circuit spiral)

Segment sequence: [111]-[1>]

Turn sequence: iOOi-i>

Level changes: +3−1−1+3+1

Group: 1.4 SXT Spiral

Series: Spiral Chakra-vyūha (M + <Sp>)

1.4 (3i.2) 1.4.2.3 SXTUsd [1]

Cx: Andreas Frei's logo from his Labyrinth Patterns website

Level sequence: 0|3412|5

Component sequence: S − S (axial bracket, 2c serpentine, bayonet crossing, 2c serpentine, axial bracket)

Segment sequence: [11-Zx-11]

Turn sequence: iIo-Zx-oIi

Level changes: +3+1−3+1+3

Group: 1.4 SXT Bayonet 

Series: Equal Crossing Stacked Serpentines