diff --git a/Modules/trials.f90 b/Modules/trials.f90
index 173ba40..0a455db 100644
--- a/Modules/trials.f90
+++ b/Modules/trials.f90
@@ -3,6 +3,8 @@
 !-
 module trials
 
+  use   pixrgb
+
     implicit none
 
     contains
@@ -45,6 +47,49 @@ subroutine new_spit_gray(pic, fname)
 
   close(io)
 
+end subroutine
+!-------------------------------------------------------------------
+!-
+!          CAUTION: there was NO out-of-bounds check !
+!-
+subroutine new_spit_rgb16(pic, fname)
+
+  type(t_pixrgb), intent(in)       ::  pic(:,:)
+  character (len=*), intent(in)    ::  fname
+
+  integer                          ::  io, ix, iy, ik
+  integer                          ::  buffer(3*4), ptr
+
+  write(0, *) ">>> subroutine rgbpix_spit_as_pnm_16"
+
+  open(newunit=io, file=fname)
+  write (io, '(a2)') "P3"
+  ! write (io, '("# rgbpix_spit_as_pnm_16")')
+  write (io, '(i0," ",i0)')  size(pic, 1), size(pic, 2)
+  write (io, '(i0)') 65535
+
+  buffer = 0
+  ptr = 1
+
+  do iy=1, ubound(pic, 2)
+    do ix=1, ubound(pic, 1)
+
+      buffer(ptr)   = pic(ix, iy)%r
+      buffer(ptr+1) = pic(ix, iy)%g
+      buffer(ptr+2) = pic(ix, iy)%b
+      ptr = ptr + 3
+
+      if (ptr .EQ. 13) then
+        write(io, "(12(' ', i0))") buffer
+        ptr = 1
+      endif
+    enddo    ! write(io, *) " fin iy=", iy
+  enddo
+
+!   may be we have to flush the buffer ?
+
+  close(unit=io)
+
 end subroutine
 !-------------------------------------------------------------------