Disk /dev/sdb: 20.0 GB, 20003880960 bytes
64 heads, 32 sectors/track, 19077 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk identifier: 0x64651a0a

Disk /dev/sdb doesn't contain a valid partition table

Disk /dev/sdb - 20 GB / 18 GiB - CHS 19078 64 32
Analyse cylinder   158/19077: 00%

dev(/dev/sdb) mss(512) chs(19077/64/32)(LBA) #s(39069696) size(19077mb)

* Warning: strange partition table magic 0x2A55.
Primary partition(1)
   type: 222(0xDE)(UNKNOWN)
   size: 15mb #s(31429) s(63-31491)
   chs:  (0/1/1)-(3/126/63)d (0/1/32)-(15/24/4)r
   hex:  00 01 01 00 DE 7E 3F 03 3F 00 00 00 C5 7A 00 00

Primary partition(2)
   type: 007(0x07)(OS/2 HPFS, NTFS, QNX or Advanced UNIX) (BOOT)
   size: 19021mb #s(38956987) s(31492-38988478)
   chs:  (4/0/1)-(895/126/63)d (15/24/5)-(19037/21/31)r
   hex:  80 00 01 04 07 7E FF 7F 04 7B 00 00 BB 6F 52 02

sudo mount -o loop,ro,offset=16123904 -t ntfs /dev/sdb /mnt/usb
NTFS signature is missing.

dd if=/dev/sdb of=/home/erik/brokenhd skip=31492 count=38956987